'Pacific Rim' trailer: Guillermo del Toro directs monster blockbuster

Guillermo del Toro steps behind the camera for the first time since 2008's Hellboy 2: The Golden Army to direct a monster movie about aliens called Kaiju that invade Earth. Mankind fights back by sending soldiers in giant fighting robots dubbed 'Jaegers'.

Charlie Hunnam leads the cast of the film, with Rinko Kikuchi, Idris Elba, Ron Perlman and Charlie Day among the supporting actors. The script comes from Clash of the Titans scribe Travis Beacham.